E-invoicing
in Slovakia: Get your business ready for the change.

From 1 January 2027, a PDF invoice sent by email is no longer enough.
In this section, you will find everything you need to know about e-invoicing in Slovakia:
→ when e-invoicing becomes mandatory
→ what is (and is not) an e-invoice
→ who the obligation applies to
→ how the Peppol network and Access Points work
→ how to prepare in 5 steps

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Are you ready for 2027?

E-invoicing in Slovakia

From 1 January 2027, the era of PDF invoices sent by email comes to an end in Slovakia. Domestic invoices between businesses (B2B) and invoices to the public sector (B2G) will be sent as structured electronic documents via the European Peppol network. This isn't just a new format. The entire invoicing, accounting and VAT reporting process is changing. The good news? Companies that prepare in time will barely notice the transition. And we're here to help you get there.

Quick facts

  • 1 Jan 2027 = mandatory e-invoicing for domestic B2B and B2G
  • XML = the invoice is a structured file, not a PDF
  • Peppol = the European network invoices travel through
  • 0245:DIČ = your identifier in the Peppol network

The law has been passed, the voluntary period is running and the obligation starts on 1 January 2027.

Key dates for e-invoicing in Slovakia

The Slovak Financial Administration launched the eFaktúra project together with experts, software companies, accounting system providers and the business community. The goal is automated invoice processing, less administration and greater efficiency. Nothing changes for consumers – the obligation applies to companies and entrepreneurs.

The reform is being introduced in stages so that businesses and software providers have time to prepare:

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A PDF sent by email is not an e-invoice

Under the new rules, an electronic invoice is not a PDF, a scan or a photo of a paper invoice. It is a structured XML file containing all mandatory details, invoice number, issue date, goods or services, amounts and customer data, in a form that software can read and process automatically. No more retyping, and no more errors that come with it.

You can still use PDF invoices outside the mandatory scope, for example when selling to consumers (B2C).

 

How does an e-invoice travel? Through the Peppol “digital post”

Slovakia has chosen Peppol – the European network for secure exchange of business documents – as its official infrastructure. It works like a digital postal service: you issue the invoice in your system, your certified Access Point delivers it to your customer’s Access Point, which passes it straight into the customer’s system. At the same time, selected invoice data is automatically reported to the Slovak Financial Administration.

There is no single central state server. The network is decentralised and there are multiple providers, so you can choose the one that suits you best. In Slovakia, Access Point providers are often called “digital postmen” (digitálny poštár).

PEPPOL EDELIVERY NETWORK

A secure network for real-time delivery of electronic documents with guaranteed delivery.

PEPPOL BIS FORMAT

A standardised invoice format based on the European standard EN 16931 and UBL 2.1, which makes invoices compatible across Europe.

CERTIFIED ACCESS POINT PROVIDER (“DIGITAL POSTMAN”)

Businesses send and receive invoices through their Access Point – from their accounting software or from a web or mobile app. The list of certified providers is published on the Financial Administration portal. The Financial Directorate of the Slovak Republic acts as the Peppol Authority for Slovakia. Businesses are identified in the network by the Slovak Peppol identifier 0245:DIČ (DIČ = Slovak tax identification number).

Who does e-invoicing apply to?

There are two obligations: issuing and receiving e-invoices.

There are two obligations: issuing and receiving e-invoices.

Issuing: from 1 January 2027, VAT payers established in Slovakia must issue electronic invoices for domestic transactions with taxable persons (B2B) and with public bodies (B2G).

Receiving: every legal entity and every taxable person must be able to receive e-invoices, for example:

  • sole traders and holders of a trade licence,
  • liberal professions – lawyers, notaries, architects, artists,
  • self-employed farmers,
  • property landlords.

Even businesses that do not issue e-invoices themselves need a contract with a certified Access Point provider in order to receive them.

New requirements

From 1 January 2027, you need to be able to issue, send, receive and process e-invoices. What does that involve?

Issuing invoices

For domestic B2B and B2G transactions, VAT payers must:

  • issue invoices as structured XML files in the Peppol BIS format,
  • send them through a certified Access Point in the Peppol network,
Receiving invoices

All taxable persons must:

  • be able to receive e-invoices from their suppliers,
  • have a contract with a certified Access Point provider and be registered under 0245:DIČ,
  • ideally import invoices automatically into their accounting or ERP system.
Format

Invoices must follow the Peppol BIS Billing 3.0 profile, based on EN 16931 and UBL 2.1. The legally binding content is the XML data; a PDF copy may be attached but is not required.

Reporting to the Financial Administration

Selected invoice data is reported to the Financial Administration automatically by your Access Point provider – you do not have to do it manually. From 1 July 2030, this near real-time reporting is expected to replace the VAT control statement and the EC Sales List.

Legal basis

E-invoicing was introduced by Act No. 385/2025 Coll., amending Act No. 222/2004 Coll. on Value Added Tax. The delivery service is regulated in § 76a and the transitional rules for mandatory domestic e-invoicing in § 85o.

Transition period

Invoices for supplies made by 31 December 2026 do not need to be electronic, even if you issue them in January 2027.

Why is the government introducing e-invoicing

According to the Slovak Ministry of Finance and the Financial Administration, structured invoice data is a tool for fighting tax fraud, narrowing the VAT gap and making tax collection more efficient, while also reducing the administrative burden on businesses.

5 e-invoicing myths you should not believe

Mýtus

  • “An e-invoice is just a PDF I send by email.”
  • “It only affects large companies.”
  • “I am not a VAT payer, so it does not concern me.”
  • “All invoices will go through a state server.”
  • “I have until New Year’s Eve.”

Fact

  • Under mandatory e-invoicing, the invoice must be a structured XML file in Peppol BIS format, delivered through the Peppol network.
  • All VAT payers must issue e-invoices, regardless of size. All taxable persons – including sole traders and landlords, must be able to receive them.
  • You do not have to issue e-invoices, but as a taxable person you must be able to receive them.
  • The Slovak model is based on the decentralised Peppol network and certified providers. The Financial Administration receives selected data, but it is not the “post office”.
  • Adapting your ERP, data and processes takes weeks or months. The voluntary period is running throughout 2026 – you can start testing right now.

More than an obligation: what e-invoicing brings your business

Although e-invoicing started as a regulatory requirement, in practice it is an operational and strategic tool. According to the Financial Administration, it brings:

What to watch out for during the transition

Data quality

E-invoicing relies on accurate master data – customers, tax IDs, products, VAT rates and payment terms. Cleaning up your data is often the first step.

Software compatibility

If you invoice from Word, Excel or a system that cannot connect to Peppol, you will need a solution that can create and receive Peppol BIS invoices.

Transitional invoices

The obligation applies to supplies made from 1 January 2027. Set up clear rules in your system in advance for invoices relating to 2026.

Choosing a provider

Every business chooses its own Access Point provider. Key criteria are the connection to your ERP, price and support. The current list of certified providers is published by the Financial Administration.

How to get ready now: 5 steps to a smooth transition

  1. Map your invoicing flows and compare them with EN 16931 and the Peppol BIS format.
  2. Check your software – can your ERP or accounting system create and receive Peppol BIS invoices?
  3. Choose a certified Access Point provider and register your 0245:DIČ identifier.
  4. Test sending and receiving invoices before the go-live – the voluntary period runs throughout 2026.
  5. Train your team and adapt your processes – credit notes, corrections and rejected invoices.

Stress-free e-invoicing with Deveho

At Deveho Consulting Group, we help companies move to e-invoicing from analysis to go-live:

  • we integrate e-invoicing into Sage X3, ERP and accounting systems,
  • we automate issuing and receiving invoices through the Peppol network,
  • we ensure compliance with Slovak and European legislation,
  • we get you ready for testing and for the mandatory start in 2027.
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Slovakia is not alone

Slovakia is joining the countries that are introducing mandatory e-invoicing. The system builds on the Peppol network, which is already used in almost 20 EU countries. The reform is also linked to the EU’s ViDA (VAT in the Digital Age) initiative, which aims to harmonise e-invoicing and VAT reporting across the EU – which is why the Slovak timeline extends the obligation to cross-border transactions from 1 July 2030.

Do you have partners abroad? See how e-invoicing works in France and Spain. 

E-invoicing in Slovakia: Frequently asked questions

Can I keep sending PDF invoices by email after 1 January 2027?

Not for transactions covered by mandatory e-invoicing (domestic B2B and B2G). These invoices must be structured XML files (Peppol BIS) delivered through the Peppol network. PDFs can still be used outside this scope, e.g. for B2C sales.

I am not a VAT payer. Does it apply to me?

You do not have to issue e-invoices. But if you are a taxable person (e.g. a sole trader or landlord), you must be able to receive them – which means you need an Access Point provider.

What is a “digital postman”?

It is the Slovak name for a certified Access Point provider – the service through which you send and receive e-invoices in the Peppol network. The list of certified providers is published on the Financial Administration portal.

What does 0245:DIČ mean?

It is your Slovak identifier in the Peppol network: the prefix 0245 followed by your tax identification number (DIČ). It tells the network where to deliver invoices addressed to you.

The supply took place in December 2026 and I issue the invoice in January 2027. Does it have to be electronic?

No. The obligation applies to supplies made from 1 January 2027 onwards.

Do I need to change my ERP or accounting system?

Not necessarily. What matters is whether your system can create and receive Peppol BIS invoices and is connected to an Access Point. If you use Sage X3, we can help you with this.

When can I start testing?

Right now. The voluntary period runs throughout 2026, so you can already send and receive e-invoices through an Access Point. We recommend starting as early as possible.

What happens to the VAT control statement and the EC Sales List?

From 1 July 2030, they are expected to be replaced by automatic, near real-time reporting of invoice data to the Financial Administration.

Does it apply to invoices for foreign partners?

The first phase from 2027 covers domestic transactions only. Extension to cross-border transactions is planned from 1 July 2030.

Where can I find official information?

On the Slovak Financial Administration website, in the eFaktúra section (an English version is available): financnasprava.sk.

Don’t leave e-invoicing to the last minute

Get in touch and together we will set up a smooth, secure and compliant e-invoicing solution for your business.

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